PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RS50BTachometer,mechanical,fixed Moun

Wisconsin Motors, Llc · NSN 6680-00-514-4094 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-514-4094 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-514-4094. Primary manufacturer part number: RS50B.
Features
  • Tachometer,mechanical,fixed Moun — FSC 6680
  • Material: STEEL CASE
  • Major Graduation Color: WHITE, LUMINOUS
  • Dial Quantity: 1
  • Drive Connection Type: FLEXIBLE
  • Graduation Unit: 1.0 HOUR
  • Mounting Feature Type: FLUSH
  • Scale Smallest Increment: 100.0 REVOLUTIONS PER MINUTE
Applications
  • Applications requiring Steel Case construction
General Description

The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-00-514-4094, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-514-4094
Primary Part NumberRS50B
Item NameTachometer,mechanical,fixed Moun
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusACTIVE
MaterialSTEEL CASE
Major Graduation ColorWHITE, LUMINOUS
Dial Quantity1
Drive Connection TypeFLEXIBLE
Graduation Unit1.0 HOUR
Mounting Feature TypeFLUSH
Scale Smallest Increment100.0 REVOLUTIONS PER MINUTE
Scale Quantity1
Operating Range+0.0 TO 4500.0 REVOLUTIONS PER MINUTE
Minor Graduation ColorBLACK
Totalizing MechanismPROVIDED
Dial IlluminationNOT PROVIDED
Unit TypeMAGNETIC
Ahead-Astern SemaphoreNOT PROVIDED
Dial Background ColorWHITE
Pointer ColorWHITE, LUMINOUS
Scale FinishFLUORESCENT
Scale Measurement Range+0.0 TO 4000.0
Mounting TypePANEL
Scale Measurement UnitREVOLUTIONS PER MINUTE
Pointer Quantity1
Case ShapeROUND
Pointer FinishFLUORESCENT
Pointer Movement DirectionLEFT TO RIGHT
Unable to DecodeUNABLE TO DECODE
Totalizing Mechanism CalibrationHOURS OPERATED
Shaft Rotation DirectionCOUNTERCLOCKWISE
Overall Diameter2.688 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6680-00-057-2776551AMC INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
Stewart-Warner Corporation
6680-00-530-4531 INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
5945-00-945-6557PE1701B16 INTERCHANGEABLE
Relay,electromagnetic
Electro National Corp
6625-01-079-00032001-SP443 INTERCHANGEABLE
Generator,sweep
Wavetek Rf Products, Inc
5325-01-095-1101RS-50 INTERCHANGEABLE
Ring,retaining
Spirolox Inc
5325-01-251-7448RS-50 INTERCHANGEABLE
Ring,retaining
Spirolox Inc
5975-01-387-5591RS-50 INTERCHANGEABLE
Frame,round Transit
Roxtec Inc
5935-01-505-1252RS-50 INTERCHANGEABLE
Clamp,cable,electrical Connector
Century Fasteners Corp. Dba Century Fasteners Corp
6035-01-507-7395RS50 INTERCHANGEABLE
Illuminator,fiber Optic
U.s. Pioneer, L.l.c.
Cross-Reference Index
Part NumberManufacturer
RS50B Barber-Greene Co (USA)
RS50 Wisconsin Motors, Llc (USA)
RS50B PRIMARY Wisconsin Motors, Llc (USA)
567ASM Macleod Inc (USA)
RS50J Wisconsin Motors, Llc (USA)
RS50B Minnpar, Llc Dba Minnpar (USA)
M760B Mars Industries Inc (USA)
567AS The Gorman-Rupp Company Div Gorman-Rupp (USA)
551-AMC Stewart-Warner Corporation (USA)
Related Parts
6680-00-057-2776INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
551AMC
6680-00-530-4531INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
5945-00-945-6557INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
PE1701B16
6625-01-079-0003INTERCHANGEABLE
GENERATOR,SWEEP
2001-SP443
5325-01-095-1101INTERCHANGEABLE
RING,RETAINING
RS-50
5325-01-251-7448INTERCHANGEABLE
RING,RETAINING
RS-50
5975-01-387-5591INTERCHANGEABLE
FRAME,ROUND TRANSIT
RS-50
5935-01-505-1252INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
RS-50
6035-01-507-7395INTERCHANGEABLE
ILLUMINATOR,FIBER OPTIC
RS50

Frequently Asked Questions

What is NSN 6680-00-514-4094?

NSN 6680-00-514-4094 is a Tachometer,mechanical,fixed Moun, manufactured by Wisconsin Motors, Llc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-514-4094?

NSN 6680-00-514-4094 has 9 cross-referenced part numbers: RS50B (Barber-Greene Co), RS50 (Wisconsin Motors, Llc), RS50B (Wisconsin Motors, Llc), 567ASM (Macleod Inc), RS50J (Wisconsin Motors, Llc) and 4 more.

What NSN replaces 6680-00-514-4094?

There are 9 known substitutes for 6680-00-514-4094: 6680-00-057-2776, 6680-00-530-4531, 5945-00-945-6557 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RS50B?

Key specifications for RS50B: Material: STEEL CASE; Major Graduation Color: WHITE, LUMINOUS; Dial Quantity: 1; Drive Connection Type: FLEXIBLE. 29 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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